Kia Sorento: Limp Home Function
Second Generation XM (2011-2024) / Kia Sorento XM 2011-2024 Service Manual / Body Electrical System / Immobilizer System / Limp Home Function
| 1. |
Limp Home By Tester
If the PCM(ECM) detects the fault of the SMARTRA or transponder,
the PCM(ECM) will allow limp home function of the immobilizer. Limp
home is only possible if the user password (4 digits) has been given
to the PCM(ECM) before. This password can be selected by the vehicle
owner and is programmed at the service station.
The user password can be sent to the PCM(ECM) via the special
tester menu.
Only if the PCM(ECM) is in status "learnt" and the user password
status is "learnt" and the user password is correct, the PCM(ECM) will
be unlocked for a period of time (30 sec.). The engine can only be started
during this time. After the time has elapsed, engine start is not possible.
If the wrong user password is sent, the PCM(ECM) will reject the
request of limp home for one hour. Disconnecting the battery or any
other action cannot reduce this time. After connecting the battery to
the PCM(ECM), the timer starts again for one hour.
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| 2. |
Limp Home By Ignition Key
The limp home can be activated also by the ignition key. The user
password can be input to the PCM(ECM) by a special sequence of ignition
on/off.
Only if the PCM(ECM) is in status "learnt" and the user password
status is "learnt" and the user password is correct, the PCM(ECM) will
be unlocked for a period of time (30 sec.).
The engine can be started during this time. After the time has
elapsed, engine start is not possible. After a new password has been
input, the timer (30 sec.) will start again.
After ignition off, the PCM(ECM) is locked if the timer has elapsed
8 seconds. For the next start, the input of the user password is requested
again.
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Teaching Procedures
1.
Key Teaching Procedure
Key teaching must be done after replacing a defective PCM(ECM)
or when providing additional keys to the vehicle owner.
The procedu ...
Diagnosis Of Immobilizer Faults
-
Communication between the ECM and the SMARTRA.
-
Function of the SMARTRA and the transponder.
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Data (stored in the EC ...
See also:
Warning And Caution Labels
1. Fan caution
2. Radiator cap caution
3. Battery caution
Battery Caution Label Description
Warning / Caution Label (Cont'd)
A.
Keep lighted cigarett ...
Refrigerant Line Replacement
1.
Discharge refrigerant from refrigeration system.
2.
Replace faulty tube or hose.
...
Front Fog Lamps Inspection
1.
With the fog lamp switch in each position, make sure that continuity
exists between the terminals below. If continuity is not as specified,
replace the multifunctio ...
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